Started calculate disk usage of build Finished Calculation of disk usage of build in 0 seconds Started calculate disk usage of workspace Finished Calculation of disk usage of workspace in 0 seconds [INFO] ------------------------------------------------------------------------ [INFO] Reactor Summary for citizens-parent 2.0.26-SNAPSHOT: [INFO] [INFO] citizens-parent .................................... SUCCESS [ 2.063 s] [INFO] citizens-main ...................................... FAILURE [ 5.802 s] [INFO] citizens-v1_8_R3 ................................... SKIPPED [INFO] citizens-v1_10_R1 .................................. SKIPPED [INFO] citizens-v1_11_R1 .................................. SKIPPED [INFO] citizens-v1_12_R1 .................................. SKIPPED [INFO] citizens-v1_13_R2 .................................. SKIPPED [INFO] citizens-v1_14_R1 .................................. SKIPPED [INFO] citizens-v1_15_R1 .................................. SKIPPED [INFO] citizens ........................................... SKIPPED [INFO] ------------------------------------------------------------------------ [INFO] BUILD FAILURE [INFO] ------------------------------------------------------------------------ [INFO] Total time: 11.567 s [INFO] Finished at: 2020-05-06T11:45:52Z [INFO] ------------------------------------------------------------------------ [ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.8.1:compile (default-compile) on project citizens-main: Compilation failure [ERROR] /var/lib/jenkins/jobs/Citizens2/workspace/main/src/main/java/net/citizensnpcs/npc/ai/AStarNavigationStrategy.java:[118,26] cannot find symbol [ERROR] symbol: method isEmpty() [ERROR] location: variable state of type net.citizensnpcs.api.astar.AStarMachine.AStarState [ERROR] -> [Help 1] [ERROR] [ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch. [ERROR] Re-run Maven using the -X switch to enable full debug logging. [ERROR] [ERROR] For more information about the errors and possible solutions, please read the following articles: [ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException [ERROR] [ERROR] After correcting the problems, you can resume the build with the command [ERROR] mvn -rf :citizens-main Waiting for Jenkins to finish collecting data Started Running as SYSTEM Build failed before it gets to this module Started calculate disk usage of build Finished Calculation of disk usage of build in 0 seconds Started calculate disk usage of workspace Finished Calculation of disk usage of workspace in 0 seconds Finished: NOT_BUILT